Film holder



June l1, 1929. Q E KOHLBERGER 1,717,228

FILM HOLDER Filed April 10, 1928 2 Sheets-Sheet l INVENTOR sv j O wmus uw, ATToRNEY WH'NESW mma ATTORNEY June 11, 1929. Q E KOHLBKERGER 1,717,228

FILM HOLDER l2 /0 y I2 /0 INVENTOR Patented June 11, 1929.

UNITED STATES CHARLES E. KOHLBERGER, OF NEW YORK, N. Y.

Application led April 10,

This inventionrelates to holders for strip lihns or negative paper A(or photographie cameras. an object being to provide a holder by means of which various sizes ot strip tilms or negative papers may be accurately positioned within the tield of a camera.

Another object ot the invention is the provision ot a holder o't the above Character which may be quickly and conveniently loaded and unloaded, and which, when loaded will securely retain the lilm or paper in position.

l/Vith the above and other objects in view, the invention further includes the tollowing novel features and details ot constructioi'i, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

1n the drawings:

Figure 1 is an elevation ot a holder constructed in accordance with the invention, the holder slide being shown partly withdrawn and a part of the slide broken away.

Figure 2 is a top plan View ot' the same.

Figure 3 is a section on the line 3-3 of Figure 1.

Figure 4 is a rear elevation with the back ot' the holder removed.

Figure 5 is a sectional view taken substantially on the line 5 5 ot Figure 4.

l Figures 6 and 7 are enlarged `traginentary sectional views taken respectively on the lines 6 6 and 7 7 of Figure 4.

Referring to the drawings in detail wherein like characters ol' reference denote corresponding parts, the reference character 10 indicates a frame which is provided with an inwardly extending bead 11 whose inner end is chamfered as at 12 to provide a seat for a glass panel 13. Secured to one face of the bead along the side members of the trame are spaced strips 14, the innermost strips overlapping the glass panel 13 to aid in holding the panel within the frame. Longitudinally extending grooves 15 are provided between the strips 14 and mounted for adjustment within these grooves are slide bars 16 to which are connected the opposite ends of a guide 17.

This guide extends across the panel 13 and is of a flexible resilient character and may consist of a spiral spring or a strip of rubber or other elastic material. The grooves are FILM HOLDER.

192B. Serial No. 268,886.

provided along one ot their edges with iudicia indicated at 18 by means of which the guide 17 may be positioned to aid in positioning a ilm o1` negative paper 19.

rlhe strips 14 are interrupted centrally ot the frame to accommodate a holder strip 20 and one end olE this holder strip may be permanently secured to one ot the side members ol the frame 10 while its opposite end is connected with an adjusting element 2l. The strip 20 is preferably made of elastic fabric so that by means of the element 21, the tension of this strip may be regulated so that it will engage the glass 13 and bear tightly upon the lihn or paper 19. rlhe strip 20 is provided with indicia 22 and a centering mark 23, by means of which the ilm or paper .lil may be positioned.

In order to temporarily space the strip 2() itrom the glass 13 to facilitate the insertion oi' large ilms or papers, the groove 15 has slidingly mounted. therein releasing members 23. These members 23 are in the form o't slides which may be moved into engagement beneath the strip 20 near opposite ends thereot so as to force the strip upward or away itrom the glass and hold the same spaced trom the glass while the film or paper is being iii-- serted. The slides 23 and the slide bars 1G are each provided with knobs or linger pieces 24 and 25 respectively.

The holder includes a back 26 whose edges are adapted to be positioned within a seat 27 provided in the frame and this back carries a panel 28 which is movable with respect to the back and is yieldingly forced in a direction away from the back by means ot sp1-in 29. The panel is provided with a lelt or other compressible facing 30 which is adapted to bear upon the film or paper 19 and upon the glass 13. The'holder is provided with the usual slide 31.

It will be apparent from the foregoing description and accompanying drawings that the invention provides a holder which is capable of being loaded in an upright position and which may be more quickly loaded and unloaded than the type of holder which employs an adhesive composition coated on a `glass plate, the latter type ol holder requirM ing that the plate be removed to remove the negative paper or film from the holder, while. when a larger negative paper or film is to er used, the plate must be changed, lt further obviates the use ot' the Wet plate holder with its method ot' placing the paper or tilm between two pieces of glass and then placing the same Within the holder. Y

rlhe invention is susceptible ot various changes in its form, proportions and minor details ot construction and the right is herein reserved to make such changes as properly tall Within the scope r ot the appended claims. l

Having described the invention what is "claimed is:l f Y l; In a holder ofthe character described, Va `trame having` grooves extending longitudinally in opposite side members and'hav-` ingindicia' along'the grooves, a glass plate enclosed Within the trame, slide bars mounted 4for adjustmentlongitudinally ofthe grooves, a' guidehaving itsopp'osite ends 'connected to the slide'bars,a`holding strip extendinga'cross the plate and having indicia thereon, a pressure back removably secured Within thetrame and adapted topress upon the holding strip, and a' slide removably mountedin the trame, t2. lnfa holder ot the character described, 4a `t'rame'having grooves extending longitudinally in oppositie side members and having indicia along the grooves. a Yglass plate enclosed within the trame, slidebars mounted for adjustment longitudinally ofthe grooves, a guide having its opposite ends connected to the slide bars, a holding strip extending across the plate and having indicia thereon, pressure releasingmembers engageable with the holding strip to space the' lattertrom the plate, a pressure "back removably secured ivithin the frame andadapted to press upon the holding strip, and slide removably mounted in the Jframe.

3. ln a holder ot the character described, a frame having grooves vi-iiten'ding longitudiv nally in opposite side members andhaving indicia ,along'thegroovea a vglass plate enclosed Within the frame, slide bars mounted for adjustment longitudinally of the grooves, a guide having its'opposite ends connected to the slide bars, a holding strip extending across the platev and adapted to bear uponV said plate, said stripliaving indicia thereon, means to adjust the pressure of said strip, a

pressure back removably secured Within'the frame and adapted to press upon the holding strip, and a slide removably mounted in the Cil , trame.

f4., In a holder of the character. described, a Vframe having grooves extending longitudinally inr opposite side members andhaving indicia along theredges of the grooves, a glass plate enclosed Within the frame, slide bars mounted for adjustment longitudinally oi the grooves a iiexible Guide havinff its op o- 23 7 D D A Y, site ends connected tothe slide bars, 'a holding strip ,extending across theplate halving indicia thereon, a pressure back removablyy secured Within the frame and adapted -na-lly in opposite side members and having indicia `along the grooves, a glass plateenclosed Within the frame, slide bars mounted a guide having its opposite ends connected to 'the slide ibars, 'a holding strip extending across the plate and having indicia thereon, pressure releasing members mounted'tor sliding movement ivithinthe grooves of the side members and engageable beneath the holdingV strip to space the lattertrom the plate, a pressure back removably secured Within thetrame and adapted'to'press upon the holding strip, and a slide removably mounted in the trame, n f6. In a holder ofthe character described, a trame having grooves extending longitudinally in opposite side members and having indicia along the grooves, a glass plate enclosed Within the traine, slide bars mounted for adjustmcntlongitudinally of the grooves, a. guide having its opposite ends connected to the slide bars, a holding strip 4extending across the plate andhaving indicia thereon, means to adjust the strip'to regulatepressure ot the same upon the plate, a pressure back removably secured Within the 'trame yand adapted to press upon thefholding strip, and a slide removably mounted in thefraine.

t 7. In a holder ot the ycharacter described. a trame having Vgrooves extending i longitudinallyrin opposite side members and'having indicia thereon, a glass plate enclosed ivithin the trame, slide bars mounted for adjustment longitudinally oi' the grooves, a guide having its opposite ends connected tothe .slide'bars, an elastic holdingstrip entendingfacrossthe -plate andhaving its opposite ends mounted tor adjustment longitudinally of the grooves,

in the trame, said strip having' indicia thereon, means to 'adjust' the tension ot the strip, a pressuregback removably secured Within the trame and adapted to press upon the holding strip,v and a Aslide removably mounted in the frame. i. l

8. In aholder of' the 'character described, a trame, spaced strips secured alongl opposite side members ot the trame to assist in holding the plate in position and to, define longitudinally extending grooves `between the strips, sai/d members having indicia along thee'dges ot' the grooves,slide bars mounted for adjustment longitudinally of the grooves, a guide having its opposite ends connected to the slide bars, Va holding strip extending across thev plat-e and having indicia thereon, apres- -sure back removably secured ivithin the frame CHARLES E. KOHLBERGER. 

